Improvement in molding shot and shells



To @ZZ whom. z't may concern:

` for adjusting the pattern, of a iuold-board with means the twoilasks,when brought together,

'"center ofthe lower flask will be perfect and I UNITED STATES PATENT,OFFICE DAVID HUESTIS, OF GOLD SPRING, NEWT- YORK.

IMPROVEMENT IN MVOLDING SHOT AND SHELLS,

Specification forming part of' Letters Patent No. 28,277,1latcd May 15,1860.

Beit known that I, DAVID HUEsTIs, of Gold Spring, in the county ofPutnam and State of New York, have invented certa-in new and usefulImprovement-s in Molding Shot and Shell, and I do hereby declare thatthe following is a full, clear, and exact description of the same,reference being had to the accompanying drawings, forming a part of thisspeciiication, inwhich- Figure l represents a vertical central sec-'tion of my asks when ready to receive the metal. Fig. 2 is a similarsection ofthe upper one ot' the semiilasks with the pattern andmold-board arranged according to my inveir tion. Fig. 3 representsavertieal central section of the lower flaslushowing the manner in whichI adjust the core. Fig. et is an inverted plan of the gage used foradjusting the core.

Similar letters of reference in the several iigures indicatecorresponding parts.

This invention consists in the employment,

a central aperture to receive a circular projection on the under side ofthe pattern, and with a circular flange on one and a rim on the otherside to fit on one side over ariinturned to the end of 011e of these1ni-iiasks,` and on the other into a flange projecting from the end ofthe other semi-flask, said rini and flange on the. sen1i-tlasks being atthe same time so arranged that they serve as guides for the ilasks whenthe saine are connected; and my' invention consists, also, in combiningwith theilanged cud nl' the lower semi-flask a cross-shaped gage with ahalt-circular recess for the purpose of adjusting the core.

'To enable those skilled in the art to make and use in): inventiony lwill proceed to describe its Construction and'operatiou with referenceto the drawings. 4

A A are two semi-flasks constructed of castirou or brass, or any othersuitable material. One end of the flask A is turned in to forni a rim,u, to fit into a ilange, c, whieh projects from the'end of the otherilask,A. By these will have a common center, so that a pattern one halfof which has been molded in the ceuter ot the upper and the other halfin the without' fault when the two flasks are brought together.

be precisely onehalfof the shot or shell to be produced, and it isprovidedwith a circular,

`the pattern is adjusted in the mo1d-board on one side or ony the other,and the mold-board is now placed under the semi-flask, as shown in Fig.2, the pattern cannot help to be perfectly in the center, so that whenthe mold is finished the two halves in each of the `semiiasks fittogether as it' it wereone piece, and Y there is no danger that one halfwill be on one side and the other on' the other side, whereby faulty anduseless castings are produced. The pattern is furnished with a pin,-e,-project.ing from its center on the curved side of the same, and longenough to reach to the top of the semi-fiasks. This piu serves to formthe pouring-tube on one side, and on the other side it leaves 'a cavityin the sand, which receives the core-pin f, (see Fig. 3,) said core-pinbeing firmly attached to the core F. Thelower end of the core-piu issecured in the bottom board, G, by means of a wedge, or inv any otherconvenient manner, and the core itself is adjusted in the mold` by meansof ya gage, H. This gage differs from the gage which is commonly usedfor the same `purpose in two essential points. The common gage consistsof a plain piece of board or sheet met-al with a half-cir cular recessin the center, and arranged to fit into the ends of the flasks. It isobvious that by this arrangement. no correct adjustment of the core canbe effected, and I have therefore y. added another piece ruimingcrosswise with y the usual gage, and giving to the whole the form of across with a half-circular recess in the center; and instead of guidingmy gage simply by the edge of the flask I have provided' the same withnotches h. on its edges, so as to fit in and on the flange a', giving tothe same a double guide-one in an up and down and the other in a lateraldirection. By these means the shot and shell can be cast with theoutside perfectly smooth, and so as to form a correct globe, and withthe, shells the core is so adjusted that a uniform thie1 ess of meta Thepattern Bin my molding process must` 2. The combination, with the hangedena of the semi-HackA A', of a cross-shaped gage,

H, with notches h, constructed and operating substantially inthcnmnnex.' and for the pur pose specified. v

` fn. HUs'vlIs.

Witnesses:

WILLIAM THoMPsoN, M. M. LIVINGSTON.

